Process for the simultaneous treatment of the top and bottom sides of a web of paper support

摘要

Process for the simultaneous treatment of the top and bottom sides of a web of paper support each with a liquid coating material, wherein a) the web of paper support is passed through the gap between two rubber rollers rotating in the same direction, b) the top side of the web of paper support is treated with the first coating material by means of a first rubber roller, the first coating material is transferred to the first rubber roller by a first screen roller rotating in the opposite direction, the first coating material is applied to the first screen roller by means of a pouring device, c) the bottom side of the web of paper support is treated with the second coating material by means of a second rubber roller, the second coating material is transferred to the second rubber roller by a second screen roller rotating in the opposite direction, the second coating material is applied to the second screen roller by means of a pouring device.